Does anyone know if it's possible to get replacement straps for Beuchat fins? My husband and I have 2 pairs that are maybe 20yrs old. I love em, but one strap broke at the buckle, The other pair has a small tear starting in one strap. I would like to fix them up with fresh straps if possible. I like them better than the new fins I have tried, and don't want to buy new fins (and booties that will fit them) unless I absolutely have to.